HMS Boadicea certainly saw action in the First Boer War.
"Men from her crew also took part in the 'Transvaal Affair' (First Boer War). On 6th January 1881, 4 officers, and 124 petty officers and men were landed from HMS Boadicea, along with two gatling guns and two 24-pounder rocket tubes. Led by Commander Romilly, they fought in the battle of Laing's Nek on 28th January. Lieutenant Cochran (of the Boadicea) and 40 seamen with the gatlings and two companies of Infantry remained at the laager. Four officers, including her captain, Commodore Richards and 84 seamen with the rocket tubes advanced with General Colley's column. The British advance was beaten back with heavy casualties due to the excellent Boer marksmanship. The Naval brigade fired rockets against the Boer counter attack to their right but had to withdraw after being engaged from three sides. Despite the high casualty rate in the infantry, the Navy only had two men killed as they were lucky enough to have the shelter of a stone wall around their position.
After 8th February, 50 more men from HMS Boadicea and HMS Dido equipped with two field guns were landed under the command of Lieutenant Ogle (of HMS Dido). On 27th February, Romilly's detachment fought at the battle of Majuba Hill, another defeat for the British. Like the rest of the British forces, the Naval Brigade suffered heavy casualties, the Boadicea lost Lieutenant Trower and 10 men and Commander Romilly and 5 men were fatally wounded and 10 others injured. Three men from HMS Dido were killed in this action and 3 more wounded. In total 33 of the 64 naval personnel present were casualties. General Colley, the commander of the force, was also killed"